ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Video door bell causing chime activation of coil
by gfretwell. 12/16/18 09:01 PM
Pull out fuse panel?
by wa2ise. 12/14/18 05:09 PM
Conduit fill Calculations
by gfretwell. 12/08/18 08:39 PM
Swimming Pool question
by HotLine1. 12/05/18 12:37 PM
Tingle off the water spigot
by rmiell. 11/30/18 01:03 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 5 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Motor disconnecting means #169658
10/11/07 02:19 AM
10/11/07 02:19 AM
I
ih17dka8  Offline OP
Junior Member
Joined: Jan 2006
Posts: 8
Seoul, South Korea
Only if within sight of motor, using branch circuit breaker(a dedicated circuit breaker in panelboard for motor) as a disconnecting means is enough without additional safety switch regardless of motor horsepower for NEC code. Is that right?

NEC 430.109(A) shows that "molded case circuit breaker" can be served as a disconnecting means for motor.

However NEC 430.109(B)describe that "For stationary motors of 1⁄8 hp or less, the branch-circuit overcurrent shall be permitted to serve as the disconnecting means.

Would you enlighten me with your opinion?

2017 / 2014 NEC & Related Books and Study Guides
Re: Motor disconnecting means [Re: ih17dka8] #169666
10/11/07 09:04 AM
10/11/07 09:04 AM
S
sparkyinak  Offline
Member
Joined: Jul 2007
Posts: 1,335
Alaska
1/8 hp max if using a breaker. 430.109(A) is general conditions while(B) is specific. When I get confused on an article, I will read the entire article. Then I will "remove" all the paragraphs that do not apply to my situation then read it again. In this case if you only read 430.109,430.109(A), and 430.109(B), you ought to be enlightened.


"Live Awesome!" - Kevin Carosa

Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
The_Lightman
The_Lightman
Orlando, Fl, USA
Posts: 49
Joined: August 2001
Show All Member Profiles 
Top Posters(30 Days)
Popular Topics(Views)
252,253 Are you busy
189,209 Re: Forum
178,892 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.013s Queries: 15 (0.003s) Memory: 0.9432 MB (Peak: 1.0601 MB) Zlib enabled. Server Time: 2018-12-17 12:09:18 UTC